How can I let go of this traumatic event?

Back in January of this year, my “father” spiraled out of control with his alcohol abuse. He started shootings a gun while drunk despite me and my mother being right next to him. I was terrified and needed him to get rid of that gun asap. He got aggressive when he saw I wouldn’t give it back. At which point, I lied and told my mom that I was calling the cops to report him if he didn’t get rid of it…he ended up giving it back to my older brother, he was the one that gave it to him. Days later my father goes to another brothers house and tells him how much of a horrible daughter I am and that I called the cops on him. That night he got drunk again and my mom was nowhere to be seen, so I went to my brothers house to look for her. That night my brother continuously told me “fuck you bitch” time and time again in front of his wife. He went on and on being rude to me and blamed me for another situation that had happened with another brother years ago. What’s crazy is…days prior to this, he was begging me to be his son’s godmother. If I’m such a bad person…why tell me this now? I haven’t spoken to him since but that day plays back in my mind every day and sometimes I cry because of it. Not sure why that brother has never liked me but for as long as I can remember…he had always had an issue with me. It’s crazy because he’s older than me and I hardly ever talk to him…so, how can you harvest such hate towards someone that doesn’t acknowledge you?

How can I let go of this traumatic event?
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